#152A35 is a muted, cool blue. On the Color Lab it reads clean and engineered, quietly premium. It is too dark to lead as a primary accent and reproduces cleanly in print.
Not just a swatch — here's how #152A35 works with other colors. Named schemes with #152A35 in its natural role, and a note on why the supporting colors balance it.
Gunmetal Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Gunmetal Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Gunmetal Gray is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Gunmetal Gray.
Gunmetal Gray plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Gunmetal Gray is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Gunmetal Gray carrying the quiet middle.
How #152A35 actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.
Not a swatch to memorise — a color to build with. Here is #152A35 at work across the surfaces designers actually ship.
:root {
--color-base: #152A35;
--color-base-rgb: 21 42 53;
--color-base-oklch: oklch(27.3% 0.034 232.7);
--color-50: #F4F8FB;
--color-100: #E1EDF4;
--color-200: #C5DBE8;
--color-300: #9CC0D3;
--color-400: #75A4BD;
--color-500: #5586A0;
--color-600: #46697C;
--color-700: #364D59;
--color-800: #26343B;
--color-900: #192024;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
gunmetal-gray: {
50: '#F4F8FB',
100: '#E1EDF4',
200: '#C5DBE8',
300: '#9CC0D3',
400: '#75A4BD',
500: '#5586A0',
600: '#46697C',
700: '#364D59',
800: '#26343B',
900: '#192024',
},
}
$base: #152A35; $base-ink: #FFFFFF; $base-50: #F4F8FB; $base-100: #E1EDF4; $base-200: #C5DBE8; $base-300: #9CC0D3; $base-400: #75A4BD; $base-500: #5586A0; $base-600: #46697C; $base-700: #364D59; $base-800: #26343B; $base-900: #192024; $base-hover: #11232C; $base-subtle: #A9C4D3;
{
"color": {
"base": {
"value": "#152A35",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F8FB",
"type": "color"
},
"100": {
"value": "#E1EDF4",
"type": "color"
},
"200": {
"value": "#C5DBE8",
"type": "color"
},
"300": {
"value": "#9CC0D3",
"type": "color"
},
"400": {
"value": "#75A4BD",
"type": "color"
},
"500": {
"value": "#5586A0",
"type": "color"
},
"600": {
"value": "#46697C",
"type": "color"
},
"700": {
"value": "#364D59",
"type": "color"
},
"800": {
"value": "#26343B",
"type": "color"
},
"900": {
"value": "#192024",
"type": "color"
}
}
}
}